I run Ubuntu (D620) and Arch Linux (D630), when using AC power, Load_Cycle_Count is not increasing at all. This is the expected behavior.

However, on my NC148 I found the LCC is slowly increasing (when display is put to sleep, count +1, etc...) on AC Power even if I disable Spin Down HD for both AC/Battery in Power Management. I am wondering if I am missing some packages (laptop-mode-tools???), how do you guys prevent the LCC from increasing?

Since 8.10, acpi package has changed, config files under /etc/acpi changed, no easy way to understand what is happening.

In Lucid 'laptop-mode-tools' is no more installed by default, if you want it you have to manually install it. Previously you had to enable it in '/etc/default/acpi-support', now it's enabled as soon as it's installed.Then, if you are using 'Samsung Tools', in the 'Samsung Tools Preferences' dialog there will be new options for 'laptop-mode'. To reduce LCC I suggest to put an high value for the 'Hard Disk Power Management' option.

If LCC is yet increasing too fast, then check in 'gnome-power-manager' preferences dialog if the option 'slow down hard disk when possible' is enabled and try to disable it.

_________________

Please consider a little donation to keep the 'Linux On My Samsung' project up and running. Thank you!

In Lucid 'laptop-mode-tools' is no more installed by default, if you want it you have to manually install it. Previously you had to enable it in '/etc/default/acpi-support', now it's enabled as soon as it's installed.Then, if you are using 'Samsung Tools', in the 'Samsung Tools Preferences' dialog there will be new options for 'laptop-mode'. To reduce LCC I suggest to put an high value for the 'Hard Disk Power Management' option.

If LCC is yet increasing too fast, then check in 'gnome-power-manager' preferences dialog if the option 'slow down hard disk when possible' is enabled and try to disable it.

Thanks Voria.

I have discussed with a few Linuxers. We agree that laptop-mode-tools are no longer required for Ubuntu. But not sure for other distros. Someone says their Arch Linux still need it for the batt to last longer.

Spin Down has already been disable right after the installation. LCC is not increasing fast, 10/day is acceptable to me;-)

BTW: thanks for mentioning the Samsung TOols Prefs GUI. I am not aware of it until I ran dpkg -L samsung-tools^^

I've had a Samsung N210 netbook for a couple of weeks and installed Ubuntu Netbook Remix 10.04 on it.It was only while reading the above post that I thought to check the Load_Cycle_Count of my own disk - it's increased on average by about 600 per hour for the last 50 hours...

I've tried all sorts of hdparm -B settings but there seems to be no effect, I've also tried installing laptop-mode-tools and configuring through that. Basically, the drive seems determined to increase the LCC and there doesn't appear to be much I can do about it.

I've had a Samsung N210 netbook for a couple of weeks and installed Ubuntu Netbook Remix 10.04 on it.It was only while reading the above post that I thought to check the Load_Cycle_Count of my own disk - it's increased on average by about 600 per hour for the last 50 hours...

I've tried all sorts of hdparm -B settings but there seems to be no effect, I've also tried installing laptop-mode-tools and configuring through that. Basically, the drive seems determined to increase the LCC and there doesn't appear to be much I can do about it.

Has anyone else experienced something similar with the N210/N220 ?

Cheers !Andrew

Did you uncheck "Spin down Hard Disks when possible" for both AC and Battery in GNOME Power Management Prefs?

The 'Spin down' options are both disabled in gnome-power-preferences and as I said, I've tried all manner of hdparm -B values (128. 220, 254, 255 etc) and none of them make the slightest difference to the rate at which LCC is increasing (about once every 10 seconds or so).

The 'Spin down' options are both disabled in gnome-power-preferences and as I said, I've tried all manner of hdparm -B values (128. 220, 254, 255 etc) and none of them make the slightest difference to the rate at which LCC is increasing (about once every 10 seconds or so).

Just for the sake of anyone else with an N210/N220 who might look at this.,, I've now tried a Western Digital WD2500BEVT in the same netbook and it responds perfectly to hdparm commands. Must be some quirk of the Samsung HM250 drive that ships with the netbook.

Who is online

Users browsing this forum: No registered users and 5 guests

You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum